3 years ago

Prove:(coseca-sina)(seca-cosa)(tana+cota)=1

Mathematics

1 answer:

jolli1 [7]3 years ago

8 0

Anis that cosine and sine?

Step-by-step explanation:

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If DF=7x-3 and EG=5x+9, find the value of X

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Answer:

$x=6$

Step-by-step explanation:

Using the given measurements of the angles and the lengths of the sides, we can determine that this figure must be a rectangle.

Diagonals of a rectangle are always equivalent/congruent.

We can use this information to set up an equation:

$DF=EG\\7x-3=5x+9$

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2 years ago

The second side of a triangular deck is 4 feet longer than the shortest side. The third side that is 4 feet shorter than twice t

Svetlanka [38]

The second side of a triangular deck is 4 feet longer than the shortest side

(s+4) = the 2nd side

and a third side that is 4 feet shorter than twice the length of the shortest side.

(2s-4) = the 3rd side

If the perimeter of the deck is 48 feet, what are the lengths of the three sides?

s + (s+4) + (2s-4) = 48

Combine like terms

s + s + 2s + 4 - 4 = 48

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s = 48/4

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I'll let you find the 2nd and 3rd sides, ensure they add up to 48

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